1. Introduction
The WitMotion WTVB05 is a new-generation temperature and vibration sensor designed for comprehensive monitoring of vibration and impact in various industrial applications. It provides early warning capabilities by sensing 3-axis displacement, speed, acceleration, and frequency, along with temperature. Built with a high-performance MEMS chip and robust 304 stainless steel, it offers reliable performance in harsh environments with its IP67 protection rating.
Figure 1: WitMotion WTVB05 sensor highlighting its multi-axis sensing capabilities and dual interface.
2. Key Features
- Comprehensive Sensing: Measures 3-axis vibration displacement, speed, acceleration, and frequency, along with temperature.
- High-Performance MEMS Chip: Ensures low-power consumption, high accuracy, and interference resistance.
- Dual Interface: Supports CAN and RS485 communication protocols.
- Robust Construction: Crafted from superior 304 stainless steel for high temperature resistance, corrosion protection, and extended lifespan.
- Environmental Protection: IP67 waterproof and dustproof rating, suitable for harsh environments, including temporary submersion.
- Flexible Mounting: Offers both threaded (M8, M5) and magnetic mounting options for convenient installation.
- Compact Design: Approximately 50% smaller than traditional temperature vibration sensors.
- Real-time Monitoring: Compatible with PC host software and mobile apps for real-time data display and analysis.
Figure 2: Illustration of the high-performance MEMS chip integrated into the sensor.
Figure 3: Size comparison of the WTVB05 sensor, demonstrating its compact form factor.
3. Specifications
3.1 WTVB05 Sensor Parameters
Figure 4: Detailed product parameters for the WTVB05 sensor.
| Parameter | Value |
|---|---|
| Product Name | WT-VB05 |
| Power Supply | 5~36V |
| Current | 23.7mA |
| Temperature Range | -20°C ~ 85°C |
| Axial Measurement | X-Axis, Y-Axis, Z-Axis |
| Output Data | Vibration (Velocity, Acceleration, Displacement, Frequency), Temperature, Chip Time |
| Vibration Velocity Range | 0-30000 mm/s |
| Vibration Acceleration Range | ±16G |
| Vibration Displacement Range | 0-30000 µm |
| Vibration Frequency Range | 1-100 Hz |
| Accuracy | F.S.±4% |
| Impact Proof | Shock resistance 20000g |
| Detection Period | 1-200Hz |
| Cut-off Cycle | 0-200Hz |
| Baud Rate | 4800bps-230400bps (adjustable) |
| Interface | RS485/CAN |
| Rating | IP67 |
| Dimensions | 35mm x 29.4mm x 29.4mm |
| Weight | 67.5g |
3.2 WTVB02-LOAR-A9 Sensor Parameters (for comparison)
Figure 5: Comparison of WTVB05 with other WitMotion vibration sensor models.
| Parameter | Value (WTVB02-LOAR-A9) |
|---|---|
| Product Name | WTVB02-LOAR-A9 |
| Power Supply | 9-24V (standard 12V) |
| Working Current | 5-13mA (standard 10mA) |
| RF Current | 16-49mA (standard 33mA) |
| Baud Rate | 4800-230400bps (standard 9600bps) |
| Output Data | 3-axis vibration (velocity + displacement + acceleration + frequency), temperature, on-chip time |
| Output Rate | High-speed mode up to 1000Hz |
| Vib Speed Range | 0-100mm/s |
| Vib Displacement Range | 0-30000µm |
| Vib Frequency Range | 1-2000Hz |
| Upload Interval | 1-65535s (standard 10s) |
| Distance (LoRa) | 2KM (urban road scenario) |
| LoRa Communications | 850.125MHz-930.125MHz |
| Standard Frequency Band | 868MHz/915MHz |
| Impact Resistance | 20000g |
| Accuracy | <F.S.±4% |
| Waterproof Level | IP67 |
| Weight | 170g |
4. Setup
4.1 Unpacking and Components
Before installation, ensure all components are present:
- WitMotion WTVB05 Sensor
- Packaging Box
- Serial Port Adapter (if included with your purchase)
Figure 6: Contents of the WTVB05 sensor package.
4.2 Mounting the Sensor
The WTVB05 sensor offers two primary mounting methods:
- Threaded Mounting: Utilize the M8 or M5 threads on the sensor for secure attachment to compatible surfaces.
- Magnetic Mounting: Attach the sensor using its magnetic base for easy installation and removal on ferromagnetic surfaces.
Figure 7: Illustration of threaded and magnetic mounting options.
4.3 Wiring Method (485 Interface)
Follow the wiring diagram below for connecting the sensor via the 485 interface. Ensure correct voltage supply and polarity.
Figure 8: Wiring diagram for the 485 communication interface.
| Wire Color | Function |
|---|---|
| RED | VCC (5~36V) |
| YELLOW | A |
| GREEN | B |
| BLACK | GND |
4.4 Software and Driver Installation
The sensor integrates with PC host software and a mobile app for testing and development. Install the necessary software and serial port drivers from the provided resources. Example programs are also available for reference.
Figure 9: Overview of software and development support for the sensor.
5. Operating Instructions
5.1 Basic Operation
Once the sensor is correctly wired and powered, it will begin collecting vibration and temperature data. The sensor supports tri-axial measurement, enabling comprehensive monitoring of vibration and impact.
Figure 10: Diagram illustrating the tri-axial measurement capability (X, Y, Z axes).
5.2 Data Monitoring with Software
Connect the sensor to your PC via the serial port adapter and launch the WitMotion software. The software provides real-time dynamic updates and various visualization tools:
- Vibration Curve Graphs: View real-time curves for vibration velocity, acceleration, displacement, and frequency, along with temperature.
- Vibration Displacement Trajectory Analysis: Analyze vibration patterns through scatter plots for X-Y, X-Z, and Y-Z axes.
Figure 11: Screenshot of the WitMotion software displaying real-time vibration and temperature curve graphs.
Figure 12: Screenshot of the WitMotion software displaying vibration displacement trajectory analysis.
5.3 Multiple Device Connection
The 485/CAN dual-interface protocol supports the cascade connection of up to 32 devices simultaneously, allowing for extensive monitoring setups.
Figure 13: Example setup for multiple WTVB05 sensors connected for signal transmission.
5.4 Applications
The WTVB05 sensor is widely used in various industries for real-time online monitoring of temperature and vibration for rotating equipment such as motors, generators, compressors, centrifuges, and water pumps.
Figure 14: Examples of industrial applications where the WTVB05 sensor can be utilized.
6. Maintenance
The WitMotion WTVB05 sensor is designed for durability and minimal maintenance due to its robust construction and environmental protection features.
- IP67 Protection: The sensor features an excellent aluminum housing and IP67 encapsulation treatment, making it waterproof, oil-resistant, and resilient to harsh environmental challenges. It can withstand splashing, rainy days, and up to 30 minutes of submersion in water.
- 304 Stainless Steel: The use of superior 304 stainless steel ensures high temperature resistance and corrosion protection, contributing to a longer lifespan.
Regularly inspect the sensor and its connections for any physical damage or corrosion. Clean the exterior with a soft, damp cloth if necessary. Avoid using harsh chemicals or abrasive materials.
Figure 15: The WTVB05 sensor's IP67 waterproof and dustproof rating.
Figure 16: The potting process ensures enhanced reliability in challenging environments.
7. Troubleshooting
This section addresses common issues and provides guidance for resolving them. For complex problems, please contact technical support.
7.1 General Troubleshooting Steps
- No Data Output: Verify all wiring connections according to the 485 Wiring Method diagram (Figure 8). Ensure the power supply is within the specified range (5-36V) and correctly connected. Check if the serial port adapter is properly installed and recognized by your computer.
- Inaccurate Readings: Ensure the sensor is securely mounted using either the threaded or magnetic options (Figure 7) to prevent external vibrations from affecting readings. Confirm that the sensor is positioned correctly relative to the equipment being monitored (e.g., X, Y, Z axes alignment).
- Software Connection Issues: Ensure the correct drivers are installed for the serial port adapter. Verify the COM port settings in the WitMotion software match your system's configuration.
7.2 Indications of Abnormal Operation
The WTVB05 sensor helps detect issues that can lead to equipment failure. Understanding these indications is crucial for effective monitoring:
- Abnormal Motor Vibration:
- Impaired winding insulation and bearing life, reduced lubrication effectiveness.
- Vibration widening insulation gaps, allowing dust and moisture ingress, increasing breakdown risk.
- Damage to cooler water pipes due to vibration and cracking.
- Increased wear on carbon brushes and slip rings, leading to noise pollution.
- Decreased equipment stability due to loose or broken anchor bolts.
- Affected workpiece processing accuracy and compromised product quality.
- Abnormal Motor Surface Temperature: Normal motor operation maintains its surface temperature within a specific range. Factors like overload or voltage fluctuations can alter this temperature. Monitoring these changes allows for adjustment of technical parameters to ensure stable motor operation.
Figure 17: Importance of monitoring motor surface temperature for stable operation.
8. User Tips
- Initial Setup: Always double-check your wiring against the provided diagram before powering on the sensor to prevent damage.
- Software Familiarization: Spend time exploring the WitMotion PC software and mobile app features. Understanding the data visualization tools will enhance your monitoring capabilities.
- Mounting Stability: For the most accurate vibration readings, ensure the sensor is mounted firmly to the equipment being monitored, minimizing any external movement or resonance from the mounting point itself.
- Environmental Considerations: While the sensor is IP67 rated, prolonged exposure to extreme conditions beyond its specifications should be avoided to ensure longevity.
9. Warranty & Support
WitMotion provides lifetime technical support for the WTVB05 sensor. For any technical assistance, inquiries, or troubleshooting beyond the scope of this manual, please contact:
- Email: support@wit-motion.com
